Starts the collection of trace data.
Runtime Services Library (librts.a)
int trcon( Channel)
int Channel;
The trcon subroutine starts trace data collection for a trace channel. The trace session must have already been started using the trace command or the trcstart (trcstart Subroutine) subroutine.
| Item | Description |
|---|---|
| Channel | Specifies one of eight trace channels. Channel number 0 always refers to the Event/Performance trace. Channel numbers 1 through 7 specify generic trace channels. |
If the trcon subroutine was successful, zero is returned and trace data collection starts. If unsuccessful, a negative one is returned.